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-rw-r--r--third_party/wasm2c/src/filenames.cc57
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diff --git a/third_party/wasm2c/src/filenames.cc b/third_party/wasm2c/src/filenames.cc
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+++ b/third_party/wasm2c/src/filenames.cc
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+/*
+ * Copyright 2016 WebAssembly Community Group participants
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "wabt/filenames.h"
+
+namespace wabt {
+
+const char* kWasmExtension = ".wasm";
+
+const char* kWatExtension = ".wat";
+
+std::string_view StripExtension(std::string_view filename) {
+ return filename.substr(0, filename.find_last_of('.'));
+}
+
+std::string_view GetBasename(std::string_view filename) {
+ size_t last_slash = filename.find_last_of('/');
+ size_t last_backslash = filename.find_last_of('\\');
+ if (last_slash == std::string_view::npos &&
+ last_backslash == std::string_view::npos) {
+ return filename;
+ }
+
+ if (last_slash == std::string_view::npos) {
+ if (last_backslash == std::string_view::npos) {
+ return filename;
+ }
+ last_slash = last_backslash;
+ } else if (last_backslash != std::string_view::npos) {
+ last_slash = std::max(last_slash, last_backslash);
+ }
+
+ return filename.substr(last_slash + 1);
+}
+
+std::string_view GetExtension(std::string_view filename) {
+ size_t pos = filename.find_last_of('.');
+ if (pos == std::string_view::npos) {
+ return "";
+ }
+ return filename.substr(pos);
+}
+
+} // namespace wabt